CN201496154U - Device for controlling exhaust gas recirculation system of traditional diesel engine - Google Patents
Device for controlling exhaust gas recirculation system of traditional diesel engine Download PDFInfo
- Publication number
- CN201496154U CN201496154U CN2009200761204U CN200920076120U CN201496154U CN 201496154 U CN201496154 U CN 201496154U CN 2009200761204 U CN2009200761204 U CN 2009200761204U CN 200920076120 U CN200920076120 U CN 200920076120U CN 201496154 U CN201496154 U CN 201496154U
- Authority
- CN
- China
- Prior art keywords
- valve
- diesel engine
- displacement transducer
- engine
- exhaust gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model relates to a device for controlling the exhaust gas recirculation system of a traditional diesel engine. An in-line fuel injection pump is provided with a mechanical speed regulator; a displacement transducer for the oil feed gear rack of the fuel injection pump and a rotation-speed transducer are mounted on the mechanical speed regulator; an exhaust gas cooler is mounted between a gas inlet pipe and a positive pressure and forward direction control valve; a valve displacement transducer is mounted on the positive pressure and forward direction control valve; a water temperature transducer is mounted on the engine; the electronic controller ECU of the engine is mounted on the diesel engine, is communicated with the valve displacement transducer, the displacement transducer for the oil feed gear rack, the water temperature transducer and the rotation-speed transducer through an integrated wiring harness CAN bus, and is connected with a valve actuator; and the valve actuator is connected with an automobile air storage tank. The device is used for controlling the exhaust gas recirculation system of traditional diesel engine; the exhaust gas recirculation rate of the engine in the entire running process is continuous and controllable; the engine is changed a bit; and besides, the device has the advantages of lower maintenance and repair cost, simple structure and simple and convenient operation.
Description
One, technical field
The utility model relates to a kind of diesel engine waste gas recycling system (EGR), and particularly a kind of in-line fuel injection pump is joined the conventional diesel engine gas recirculation system of mechanical speed governor.
Two, technical background
At present, the working principle of engine exhaust-gas recirculating system is that a small amount of motor combustion gas is introduced in the cylinder, because it is bigger that waste gas comprises the thermal capacity of the CO2 that can not burn again and water vapor, so the combustion process time lag of inflammation is increased, it is slack-off that cylinder combustion is burnt speed, maximum combustion temperature descends, and destroys the generation of main harmful gas NOX, and the NOX discharge amount is obviously reduced.This technology is applied on electronic controlled diesel in heavy goods vehicles at present.But for heavy diesel engine for automobile, also have non-electrospray quite a lot, in-line fuel injection pump joins the conventional diesel engine product of mechanical speed governor, must reduce its noxious emission equally, and gas recirculation system also should be a kind of effective technical way by every possible means.
Three, summary of the invention
Technical problem to be solved in the utility model provides a kind of conventional diesel engine gas recirculation system control gear of joining mechanical speed governor for in-line fuel injection pump, according to the different running of diesel engine operating mode, the exhausted air quantity in the cylinder is introduced in control, realize satisfactory ER EGR Rate, optimize exhaust index and reach state's 3 vehicular engine standards.
The utility model is to realize like this, conventional diesel engine gas recirculation system control gear, Injection Pump band mechanical speed governor in upright arrangement, Injection Pump fuel feeding ratch displacement transducer and speed probe are installed on the mechanical speed governor, gaseous effluent is installed between suction tude and the malleation forward control valve, on the malleation forward control valve valve displacement transducer is installed, cooling-water temperature sensor is installed on the motor, Motronic control maps controller ECU is installed on the diesel engine, Motronic control maps controller ECU and valve displacement transducer, fuel feeding ratch displacement transducer, cooling-water temperature sensor, communicate contact by harness-integrated CAN bus between the speed probe, and link to each other with valve actuator, valve actuator links to each other with the automobile gas holder.
Because this device adopts the mechanical speed governor in-line fuel injection pump, demarcate the valve displacement of malleation forward control valve according to fuel injection quantity and engine speed, therefore in diesel engine whole service process, engine exhaust recirculation rate continuous controllable, thereby the optimum discharge value when reaching the diesel engine actual operating mode.
Four, description of drawings
Fig. 1 is a diesel engine waste gas recycling system control gear working principle schematic representation.
Among the figure, 1 is gaseous effluent, and 2 is malleation forward control valve, 3 is the valve displacement transducer, and 4 is valve actuator, and 5 is fuel feeding ratch displacement transducer, 6 is cooling-water temperature sensor, and 7 is speed probe, and 8 is harness-integrated CAN bus, 9 is Motronic control maps controller ECU, 10 is the automobile gas holder, and 11 is in-line fuel injection pump, and 12 is mechanical speed governor, 13 is suction tude, and 14 is outlet pipe.
Five, embodiment
As shown in Figure 1, this device is for being applicable to the conventional diesel engine gas recirculation system control gear of Injection Pump band mechanical speed governor in upright arrangement, on the Injection Pump mechanical speed governor in upright arrangement fuel feeding ratch displacement transducer and speed probe are installed, gaseous effluent is installed between suction tude and the malleation forward control valve, on the malleation forward control valve valve displacement transducer is installed, cooling-water temperature sensor is installed on the motor, Motronic control maps controller ECU is installed on the diesel engine, Motronic control maps controller ECU and valve displacement transducer, fuel feeding ratch displacement transducer, cooling-water temperature sensor, communicate contact by harness-integrated CAN bus between the sensors such as speed probe, and link to each other with valve actuator, valve actuator links to each other with the automobile gas holder.According to the MAP figure that provides pre-input, signal along with speed probe, cooling-water temperature sensor and fuel feeding ratch displacement transducer feedback, realize the opening and closing of malleation forward control valve, the valve displacement transducer of malleation forward control valve feeds back to Motronic control maps controller ECU, realizes EGR gas amount in the different operating modes introducing of the control cylinder.When engine start or cold conditions, feed back signal to Motronic control maps controller ECU by cooling-water temperature sensor, this moment, malleation forward control valve was not opened; When motor operated in the partial load condition in emission control zone, this moment, malleation forward control valve was opened or the part unlatching; Though outside motor operates in the emission control district or in the emission control district but when being in high load, this moment, malleation forward control valve was not opened yet.This device is applicable to the conventional diesel engine of band traditional mechanical formula speed regulator Injection Pump in upright arrangement, demarcates valve displacement on the malleation forward control valve, the switching of control valve by fuel delivery and engine speed.Because native system adopts malleation forward control valve device, the reflecting action of outlet pipe internal pressure aligns the influence of positive pressure to the valve opening of control valve in the time of can preventing exhaust brake, so ER EGR Rate can continuous controllable, be fit to very much the supporting usefulness of truck, diesel engine is reliable, working stability, under different operating modes, exhaust index reaches state's 3 vehicular engine emission standards.
This device is used for the control of conventional diesel engine gas recirculation system, and motor is changed not quite, and therefore maintenance and maintenance expenses are low, simple in structure, easy and simple to handle.
Claims (1)
1. conventional diesel engine gas recirculation system control gear, it is characterized in that Injection Pump band mechanical speed governor in upright arrangement, Injection Pump fuel feeding ratch displacement transducer and speed probe are installed on the mechanical speed governor, gaseous effluent is installed between suction tude and the malleation forward control valve, on the malleation forward control valve valve displacement transducer is installed, cooling-water temperature sensor is installed on the motor, Motronic control maps controller ECU is installed on the diesel engine, Motronic control maps controller ECU and valve displacement transducer, fuel feeding ratch displacement transducer, cooling-water temperature sensor, communicate contact by harness-integrated CAN bus between the speed probe, and link to each other with valve actuator, valve actuator links to each other with the automobile gas holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200761204U CN201496154U (en) | 2009-06-11 | 2009-06-11 | Device for controlling exhaust gas recirculation system of traditional diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200761204U CN201496154U (en) | 2009-06-11 | 2009-06-11 | Device for controlling exhaust gas recirculation system of traditional diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201496154U true CN201496154U (en) | 2010-06-02 |
Family
ID=42439362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200761204U Expired - Fee Related CN201496154U (en) | 2009-06-11 | 2009-06-11 | Device for controlling exhaust gas recirculation system of traditional diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201496154U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352776A (en) * | 2013-07-03 | 2013-10-16 | 哈尔滨工程大学 | Continuous controllable modularized exhaust gas recirculation structure |
| WO2022111538A1 (en) * | 2020-11-27 | 2022-06-02 | 长城汽车股份有限公司 | Method and device for determining optimal exhaust gas recirculation rate of vehicle, storage medium, and vehicle |
-
2009
- 2009-06-11 CN CN2009200761204U patent/CN201496154U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352776A (en) * | 2013-07-03 | 2013-10-16 | 哈尔滨工程大学 | Continuous controllable modularized exhaust gas recirculation structure |
| WO2022111538A1 (en) * | 2020-11-27 | 2022-06-02 | 长城汽车股份有限公司 | Method and device for determining optimal exhaust gas recirculation rate of vehicle, storage medium, and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20170611 |